Horseshoe



Aug. 7, 1945'- R. c. MITCHELL 1 3 1 HORSE SHQE Filed Dec. 16, 1945Ro////2 a mic/2277 (Ittorneg shaped head which has ment with thelower'end face of the enlargement in which the insert is embedded.The-heads have flat under. faces 'and each is formed at dia-' PatentedAug. 7,1945

UNITED STATES .1 PATENT. OFFICE HORSESHOE Rollin dtfiicheu, Spokane,Wash. Application Deceniber 1c, 1943, Serial No. 514,514

' 4 Claims. (01. 168-33) This invention relates'to horse snoes and moreparticularly to a shoe for race horses.'-' Shoes for race horses must beof; light weight andsince 1 race horses run upontracks which may be dryor muddy, it is necessary to provide a' horse with shoes suitable tothecondition of the track over which a race is to be run. s

. Therefore, one object of the invention is to provide a .shoe which isespecially adapted for use by race horses since it, has a light bodyformed of aluminumand calks which are de-' tachably applied and maybeeasily and quickly applied, according to the type of track over whichthe horses must run during a race.

Another object of the invention is to provide the body of the shoejwithinserts of hard metal in which sockets may be formed to receive threadedstems of calks. and without likelihood of splitting as would be the caseif the calks were screwed into sockets formed directly in the body of analuminum shoe.

Anotherobject ofthe invention is to provide -a. ca1k removably carriedby an insert insuch -manner that it.will be prevented from I downwardlyor having turning movement which I would loosen it. p v

In the accompanying drawing:

having the improved construction. Fig. 2 is a fragmentary'sectional viewtaken working Fig. 1 is a perspective view of a horse shoe along anenlarged scale, on the line Z-2 of Fig. 1..

Fig. 3 .is agroup view in perspective showing a calk for a muddy trackremoved. from the shoe.

Fig. 4. is a view similar to Fig. 3', showing a calk for a dry track.

i Fig. 5 is a fragmentary sectional view showing 7 the insert cast intothe heel of a shoe;

The present horse shoe, indicatedin general by the numeral 1, is of thetype used upon race horses and is formed'of aluminumor similar metal' sothat it will be light i weight. v This shoe is provided with a toe calk2 ofconventional 7 form and the heel portions are formed withenlargements 3 which project downwardly and have embedded thereininserts or blocks 4 which are formed of steel or other suitable hardmetal. The inserts'are ofirusto conical shape, as shown in Figs. 2 and 4of'thedrawing, and each is formed-at its outer'or lower end with a flatdiscmetrically opposite points with recesses 6 to reflat contactingengage ments 3 and serving to brace the inserts against turning movementcase they should tend to loosen when the shoe is in use. A threadedsocket 8 is formed in each insert axially thereof to receive thethreaded stem of a calk.

,formed in the peripheral portion of the body of thecal k indiametrically opposed relation to each other to receive a wrenchfloymeans of which the calk is screwed intoplace. About the stem of eachcalk the body is formed with a. circular recess 13 to receive a lockingwasher M of the split-washer type, and from an inspection of Fig. .2, itwill be seen that when the calk is screwed tightly into place, thewasher will be flattened and have biting engagement with the calk andthe confronting lower face of the insert and re.- sist loosening of thecalk.

The calk 9 carried by the heel at the outer sideof the shoe is providedwith a spik l5 which extends outwardly or downwardlytherefrom and istapered, toward its lower end, and, by referring to Figs. 1 and 2, itwill be seen that when the calk applied to the shoe, turning thereofrwhile screwing it .into place is stopped with the calk disposed in theplane of the length of the shoe.

.cept for the wrench-receiving recesses or notches 1. V

.During fair weather when the track-is dry, calks without spikes areused .for both'heels of the shoe but when the track is muddy, spikedcalk's maybe very easily and quickly substituted in lieu of the flatcalks. In Fig. 1, a. single spiked calk has been shownin use and thiscalk is applied to the outer heel of the shoe so that the horse wearingthe shoe will not be liable to cut one foot with the calk of the shoeworn on the other foot.

4 In-some cases, calks may beapplied to both heels of a shoe. It shouldalso be noted that if desired, the insert may be formed asshown in Fig.

-5, wherein: the insert is solid,'the recesses 6 and thethreaded socketshown in Fig. 3, as well as:

in Fig. 4, being omitted. This form. of insert serves. as a permanentcalkfor iast'tra'cks and shoes equipped with such calks or insertsareused upon horses not intended to run upon muddy tracks. Y r

Having thus described the invention, what is claimed is: v

1. A horse shoe having heel portions formed with depending enlargements,inserts of hard metal cast into the enlarged heel portions and eachbeing of frusto conical shape and formed at its lower end with a flatdisc-like head in flat face to' face engagement with the under face ofthe heel portion in which its frusto conical portion is embedded, saidhead being formed at its periphery with recesses for receiving portionsof the enlargement and holding the insert against turning movement, acalk having a disc-like body, a threaded stem carried .by the body andscrewed into the socket, a locking washer about the stem, the inner faceof the body being formed, witha 'ing a disc-like head at its outer endin face to face 3; A horse shoe having heel portions, inserts of hardmetal cast into the heel portions and held against outward movement,each insert havengagement with the under face of the heel portion inwhich the insert is embedded, each insert being formed with a threadedsocket open at its lower end, calks, eachcalk having a disc-like bodyand a threaded stem extending centrally therefrom for engaging in thesocket of the companion insert, and locking washers about the circularrecess about the stem for receiving the locking washer, the outer faceof the body being formed with wrench-receiving recesses, and a spikeprojecting from the outer face of the body in alinement with the stem.

2. A horse shoe having heel portions, inserts of hard metal cast intothe heel portions and held against outward movement, each insert havinga disc-like head at its outer end in face to face engagement with theunderface of the heel portion in which the insert is mounted, eachinsert being formed with a threaded socket flpen at its lower end, andcalks each having a disc-like body and a threaded portion for engagingin the socket of of hard metal stems for holding the calks againstturning in a loosening directiomthe inner faces of the disclike aboutthe stems for receiving the locking washers. 4. A' horse shoe havingheel portions, inserts cast into the heel portions and held againstoutward movement, each insert having a disc-like head at itsouter end inface to face engagement withthe under face of the heel portion in whichthe insert is embedded, each insert being formed with a threaded socketopen at its lower end, calks, each calk having a disc-like body and athreaded stem extending centrally therefrom for engaging in the socketof the com p'anion insert, and a spike extending outwardly from thedisc-like body of one calk in alinement with the stem thereof.

norms 0. summit bodies being formed with annular recesses Y

